The Beijing Municipal Public Security Bureau says that over 5000 "electronic eye" inspecting devices have been studded all over the city to strengthen security.
Currently, more than 440,000 people in Beijing are employed to help keep the city safe.
The Beijing municipal government has launched a contest among communities called "the number of consecutive non-crime days" since 2002 to create a community-based anti-crime network. Meanwhile, 1947 of 2135 communities have reached the standard of a "safe community", and 144 of them have maintained a "zero crime" record for the past three years.
The anti-crime network is mainly composed of community police, members of local residential associations and technology like "electronic eyes".